Avoid building and packaging of sparc64 specific files in the x86 builds.
Fixes Bug:
[YOCTO #6427]
(From OE-Core rev: e9d1264a63f47965c2f10e18e532b117bbda26be)
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>